Effects of positive and negative affect on electromyographic activity over zygomaticus major and corrugator supercilii
Effects of positive and negative affect on electromyographic activity over zygomaticus major and corrugator supercilii
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DOI：
10.1111/1469-8986.00078
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发表时间：
2003-09-01
期刊：
影响因子：
3.7
通讯作者：
Cacioppo, JT
中科院分区：
文献类型：
--
作者：
Larsen, JT;Norris, CJ;Cacioppo, JT
愉快的刺激通常会引起更大的肌电图（EMG）活动，在大肌和皱眉肌活动较少，比不愉快的刺激。为了对这两种方法进行系统的比较，作者研究了情感对大比目鱼肌和皱眉肌活动的影响的相对形式和强度。自我报告的积极和消极的情感反应和面部肌电图收集妇女（n = 68）暴露于一系列的情感图片，声音和文字。与基于面部肌肉组织的神经生理学的已知特性的推测一致，结果显示，在皱眉肌与大比目鱼肌的活动上，效价具有更强的线性效应。此外，积极和消极的情绪评级表明，积极和消极的情绪对皱眉肌的活动有相互影响，但没有大颏肌。
Pleasant stimuli typically elicit greater electromyographic (EMG) activity over zygomaticus major and less activity over corrugator supercilii than do unpleasant stimuli. To provide a systematic comparison of these 2 measures, the authors examined the relative form and strength of affective influences on activity over zygomaticus major and corrugator supercilii. Self-reported positive and negative affective reactions and facial EMG were collected as women (n = 68) were exposed to series of affective pictures, sounds, and words. Consistent with speculations based on known properties of the neurophysiology of the facial musculature, results revealed a stronger linear effect of valence on activity over corrugator supercilii versus zygomaticus major. In addition, positive and negative affect ratings indicated that positive and negative affect have reciprocal effects on activity over corrugator supercilii, but not zygomaticus major.